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3143423 = 10131123
BaseRepresentation
bin1011111111011011111111
312220200222002
423333123333
51301042143
6151212515
735501333
oct13773377
95820862
103143423
111857778
12107713b
13860a1a
145bb7c3
154215b8
hex2ff6ff

3143423 has 4 divisors (see below), whose sum is σ = 3174648. Its totient is φ = 3112200.

The previous prime is 3143411. The next prime is 3143447. The reversal of 3143423 is 3243413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3143423 - 28 = 3143167 is a prime.

It is a super-2 number, since 2×31434232 = 19762216313858, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3143395 and 3143404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15461 + ... + 15662.

It is an arithmetic number, because the mean of its divisors is an integer number (793662).

Almost surely, 23143423 is an apocalyptic number.

3143423 is a deficient number, since it is larger than the sum of its proper divisors (31225).

3143423 is a wasteful number, since it uses less digits than its factorization.

3143423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31224.

The product of its digits is 864, while the sum is 20.

The square root of 3143423 is about 1772.9701069110. The cubic root of 3143423 is about 146.4876264559.

Adding to 3143423 its reverse (3243413), we get a palindrome (6386836).

The spelling of 3143423 in words is "three million, one hundred forty-three thousand, four hundred twenty-three".

Divisors: 1 101 31123 3143423